<template>
  <div>
    <router-view name="a" style="border: 2px solid #f00"></router-view>
    <h1>TTT</h1>
    <router-view style="border: 2px solid #666"></router-view>
    <router-view name="b" style="border: 2px solid #00f"></router-view>
  </div>
</template>
